/Engine/Source/Runtime/GeometryFramework/Public/Components/BaseDynamicMeshComponent.h
Class-wide Default Materials used for Wireframe and VertexColor display mode. These are configured for the Editor when the module loads, defaulting to built-in Engine wireframe and vertex color materials. Note that the ModelingComponents module in the MeshModelingToolset plugin (usually enabled in the UE Editor) will set a new VertexColor material from that plugins Content. Client code can further configure these materials as necessary using the static functions below. Set the wireframe material used for all BaseDynamicMeshComponent-derived Components
static void SetDefaultWireframeMaterial ( [UMaterialInterface](API\Runtime\Engine\Materials\UMaterialInterface) * Material )